activity
19952026
most citedQuantum phase transitions

745 citations · 4.7k across the 155 of their papers we have counts for

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Showing 1997Show all

5 papers · 1 filter

cond-mat.dis-nn1997

Quantum Coulomb glass - Hartree-Fock approximation versus exact diagonalization

Frank Epperlein, Michael Schreiber, Thomas Vojta

We investigate the behavior of disordered interacting electrons in the insulating regime. Our study is based on the quantum Coulomb glass model which is obtained from the classical…

cond-mat.dis-nn1997

Quantum Coulomb Glass: Anderson localization in an interacting system

Thomas Vojta, Frank Epperlein, Michael Schreiber

The quantum Coulomb glass model describes disordered interacting electrons on the insulating side of a metal-insulator transition. By taking quantum fluctuations into account it ca…

cond-mat.stat-mech1997★ 4 cited

Damage spreading in random field systems

Thomas Vojta

We investigate how a quenched random field influences the damage spreading transition in kinetic Ising models. To this end we generalize a recent master equation approach and deriv…

cond-mat.dis-nn1997★ 47 cited

The quantum Coulomb glass within the Hartree-Fock approximation

Frank Epperlein, Michael Schreiber, Thomas Vojta

We study the influence of electron-electron interactions on the electronic properties of disordered materials. In particular, we consider the insulating side of a metal-insulator t…

cond-mat.dis-nn1997★ 11 cited

Two interacting particles in a random potential: The random matrix model revisited

Thomas Vojta, Rudolf A. Roemer, Michael Schreiber

We reinvestigate the validity of mapping the problem of two onsite interacting particles in a random potential onto an effective random matrix model. To this end we first study num…